/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 08:55:31,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 08:55:31,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 08:55:31,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 08:55:31,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 08:55:31,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 08:55:31,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 08:55:31,365 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 08:55:31,402 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 08:55:31,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 08:55:31,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 08:55:31,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 08:55:31,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 08:55:31,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 08:55:31,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 08:55:31,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 08:55:31,405 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 08:55:31,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 08:55:31,406 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 08:55:31,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 08:55:31,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 08:55:31,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 08:55:31,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 08:55:31,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 08:55:31,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 08:55:31,406 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 08:55:31,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 08:55:31,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 08:55:31,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 08:55:31,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 08:55:31,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 08:55:31,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 08:55:31,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 08:55:31,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:55:31,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 08:55:31,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 08:55:31,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 08:55:31,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 08:55:31,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 08:55:31,409 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 08:55:31,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 08:55:31,410 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 08:55:31,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 08:55:31,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 08:55:31,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 08:55:31,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 08:55:31,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 08:55:31,650 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 08:55:31,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2022-01-18 08:55:31,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bfc6166/7ab7110266d84a3a9800dc8b15bf6070/FLAG032aa0e48 [2022-01-18 08:55:32,173 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 08:55:32,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2022-01-18 08:55:32,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bfc6166/7ab7110266d84a3a9800dc8b15bf6070/FLAG032aa0e48 [2022-01-18 08:55:32,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bfc6166/7ab7110266d84a3a9800dc8b15bf6070 [2022-01-18 08:55:32,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 08:55:32,547 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 08:55:32,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 08:55:32,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 08:55:32,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 08:55:32,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:32,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5087ccfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32, skipping insertion in model container [2022-01-18 08:55:32,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:32,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 08:55:32,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 08:55:32,783 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 08:55:32,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i[30494,30507] [2022-01-18 08:55:32,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:55:32,929 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 08:55:32,948 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 08:55:32,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i[30494,30507] [2022-01-18 08:55:32,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:55:32,996 INFO L208 MainTranslator]: Completed translation [2022-01-18 08:55:32,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32 WrapperNode [2022-01-18 08:55:32,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 08:55:32,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 08:55:32,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 08:55:32,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 08:55:33,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,044 INFO L137 Inliner]: procedures = 170, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-01-18 08:55:33,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 08:55:33,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 08:55:33,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 08:55:33,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 08:55:33,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 08:55:33,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 08:55:33,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 08:55:33,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 08:55:33,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (1/1) ... [2022-01-18 08:55:33,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:55:33,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:55:33,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 08:55:33,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 08:55:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-18 08:55:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-18 08:55:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 08:55:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 08:55:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 08:55:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 08:55:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 08:55:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 08:55:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 08:55:33,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 08:55:33,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 08:55:33,149 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 08:55:33,223 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 08:55:33,224 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 08:55:33,316 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 08:55:33,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 08:55:33,330 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-18 08:55:33,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:55:33 BoogieIcfgContainer [2022-01-18 08:55:33,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 08:55:33,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 08:55:33,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 08:55:33,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 08:55:33,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 08:55:32" (1/3) ... [2022-01-18 08:55:33,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6a8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:55:33, skipping insertion in model container [2022-01-18 08:55:33,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:32" (2/3) ... [2022-01-18 08:55:33,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6a8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:55:33, skipping insertion in model container [2022-01-18 08:55:33,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:55:33" (3/3) ... [2022-01-18 08:55:33,338 INFO L111 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2022-01-18 08:55:33,342 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 08:55:33,342 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 08:55:33,342 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 08:55:33,342 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 08:55:33,374 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,375 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,375 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,376 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,376 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,380 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,380 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,380 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,380 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,381 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:55:33,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:55:33,453 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:33,453 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 08:55:33,461 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 37 transitions, 79 flow [2022-01-18 08:55:33,492 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 97 states, 94 states have (on average 1.648936170212766) internal successors, (155), 96 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 94 states have (on average 1.648936170212766) internal successors, (155), 96 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-18 08:55:33,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:33,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:33,502 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:33,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:33,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1096869042, now seen corresponding path program 1 times [2022-01-18 08:55:33,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:33,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365653823] [2022-01-18 08:55:33,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:33,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:33,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:33,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365653823] [2022-01-18 08:55:33,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365653823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:33,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:33,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:33,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353011236] [2022-01-18 08:55:33,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:33,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:33,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:33,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:33,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:33,782 INFO L87 Difference]: Start difference. First operand has 97 states, 94 states have (on average 1.648936170212766) internal successors, (155), 96 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:33,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:33,803 INFO L93 Difference]: Finished difference Result 71 states and 107 transitions. [2022-01-18 08:55:33,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:33,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-18 08:55:33,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:33,817 INFO L225 Difference]: With dead ends: 71 [2022-01-18 08:55:33,817 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:55:33,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:33,822 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:33,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 44 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:33,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:55:33,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:55:33,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:33,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:55:33,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-01-18 08:55:33,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:33,849 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:55:33,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:55:33,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:55:33,853 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-18 08:55:33,854 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 08:55:33,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 08:55:33,858 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:55:33,864 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE (1/2) [2022-01-18 08:55:33,878 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:55:33,882 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:33,882 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:55:33,884 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 37 transitions, 79 flow [2022-01-18 08:55:33,889 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 84 states, 82 states have (on average 1.6097560975609757) internal successors, (132), 83 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 82 states have (on average 1.6097560975609757) internal successors, (132), 83 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 08:55:33,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:33,896 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:33,896 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:55:33,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:33,897 INFO L85 PathProgramCache]: Analyzing trace with hash 750747050, now seen corresponding path program 1 times [2022-01-18 08:55:33,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:33,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790713272] [2022-01-18 08:55:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:33,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:33,943 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:55:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:33,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:55:33,971 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:55:33,971 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:55:33,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 08:55:33,972 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:55:33,972 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:55:33,973 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:55:33,973 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-18 08:55:33,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,982 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,982 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,982 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,982 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,984 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,984 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,985 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,985 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,987 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,987 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,988 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,988 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:33,989 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:55:33,990 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:55:33,991 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:33,991 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 08:55:33,992 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 102 flow [2022-01-18 08:55:34,043 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 815 states, 807 states have (on average 2.5675340768277573) internal successors, (2072), 814 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 815 states, 807 states have (on average 2.5675340768277573) internal successors, (2072), 814 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-18 08:55:34,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:34,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:34,049 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:34,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:34,050 INFO L85 PathProgramCache]: Analyzing trace with hash 816539065, now seen corresponding path program 1 times [2022-01-18 08:55:34,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:34,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469146330] [2022-01-18 08:55:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:34,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:34,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:34,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469146330] [2022-01-18 08:55:34,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469146330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:34,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:34,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:34,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849671714] [2022-01-18 08:55:34,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:34,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:34,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:34,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:34,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:34,105 INFO L87 Difference]: Start difference. First operand has 815 states, 807 states have (on average 2.5675340768277573) internal successors, (2072), 814 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:34,150 INFO L93 Difference]: Finished difference Result 484 states and 1173 transitions. [2022-01-18 08:55:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:34,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-18 08:55:34,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:34,158 INFO L225 Difference]: With dead ends: 484 [2022-01-18 08:55:34,158 INFO L226 Difference]: Without dead ends: 309 [2022-01-18 08:55:34,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:34,159 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 9 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:34,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 56 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:34,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-01-18 08:55:34,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2022-01-18 08:55:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 307 states have (on average 2.192182410423453) internal successors, (673), 308 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 673 transitions. [2022-01-18 08:55:34,194 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 673 transitions. Word has length 22 [2022-01-18 08:55:34,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:34,195 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 673 transitions. [2022-01-18 08:55:34,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,195 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 673 transitions. [2022-01-18 08:55:34,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-18 08:55:34,197 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:34,197 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:34,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 08:55:34,198 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:34,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:34,198 INFO L85 PathProgramCache]: Analyzing trace with hash -217358121, now seen corresponding path program 1 times [2022-01-18 08:55:34,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:34,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417758461] [2022-01-18 08:55:34,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:34,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:34,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:34,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417758461] [2022-01-18 08:55:34,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417758461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:34,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:34,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:34,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718650981] [2022-01-18 08:55:34,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:34,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:34,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:34,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:34,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:34,274 INFO L87 Difference]: Start difference. First operand 309 states and 673 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:34,293 INFO L93 Difference]: Finished difference Result 261 states and 551 transitions. [2022-01-18 08:55:34,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:34,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-01-18 08:55:34,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:34,294 INFO L225 Difference]: With dead ends: 261 [2022-01-18 08:55:34,294 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:55:34,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:34,296 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 7 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:34,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 64 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:55:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:55:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:55:34,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-01-18 08:55:34,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:34,298 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:55:34,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:55:34,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:55:34,298 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 08:55:34,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-18 08:55:34,299 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-18 08:55:34,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 08:55:34,299 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 08:55:34,299 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE (1/2) [2022-01-18 08:55:34,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:55:34,301 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:34,301 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:55:34,302 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 102 flow [2022-01-18 08:55:34,314 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 588 states, 584 states have (on average 2.5154109589041096) internal successors, (1469), 587 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 588 states, 584 states have (on average 2.5154109589041096) internal successors, (1469), 587 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-18 08:55:34,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:34,322 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:34,322 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:55:34,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:34,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1984575946, now seen corresponding path program 1 times [2022-01-18 08:55:34,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:34,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847720055] [2022-01-18 08:55:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:34,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:34,344 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:55:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:34,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:55:34,359 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:55:34,359 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:55:34,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 08:55:34,360 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:55:34,360 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:55:34,360 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:55:34,360 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-18 08:55:34,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,369 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,369 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,369 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,369 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,370 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,370 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,371 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,372 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,373 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,373 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,373 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,373 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,373 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,375 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,376 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,376 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,376 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,377 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,377 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,377 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,378 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,379 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,379 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,379 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:34,379 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:55:34,381 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:55:34,381 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:34,381 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 08:55:34,382 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 53 transitions, 127 flow [2022-01-18 08:55:34,621 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7069 states, 7050 states have (on average 3.4601418439716314) internal successors, (24394), 7068 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 7069 states, 7050 states have (on average 3.4601418439716314) internal successors, (24394), 7068 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-18 08:55:34,657 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:34,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:34,657 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:34,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1995165472, now seen corresponding path program 1 times [2022-01-18 08:55:34,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:34,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607944014] [2022-01-18 08:55:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:34,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:34,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:34,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607944014] [2022-01-18 08:55:34,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607944014] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:34,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:34,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:34,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832511278] [2022-01-18 08:55:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:34,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:34,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:34,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:34,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:34,748 INFO L87 Difference]: Start difference. First operand has 7069 states, 7050 states have (on average 3.4601418439716314) internal successors, (24394), 7068 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:34,861 INFO L93 Difference]: Finished difference Result 3937 states and 13099 transitions. [2022-01-18 08:55:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:34,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-18 08:55:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:34,968 INFO L225 Difference]: With dead ends: 3937 [2022-01-18 08:55:34,968 INFO L226 Difference]: Without dead ends: 3062 [2022-01-18 08:55:34,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:34,970 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 13 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:34,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 65 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:34,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-01-18 08:55:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 3062. [2022-01-18 08:55:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3056 states have (on average 3.181937172774869) internal successors, (9724), 3061 states have internal predecessors, (9724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 9724 transitions. [2022-01-18 08:55:35,130 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 9724 transitions. Word has length 22 [2022-01-18 08:55:35,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:35,130 INFO L470 AbstractCegarLoop]: Abstraction has 3062 states and 9724 transitions. [2022-01-18 08:55:35,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:35,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 9724 transitions. [2022-01-18 08:55:35,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-18 08:55:35,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:35,132 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:35,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 08:55:35,132 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:35,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:35,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1085565332, now seen corresponding path program 1 times [2022-01-18 08:55:35,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:35,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107766185] [2022-01-18 08:55:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:35,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:35,165 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:35,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:35,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107766185] [2022-01-18 08:55:35,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107766185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:35,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:35,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:35,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983809399] [2022-01-18 08:55:35,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:35,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:35,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:35,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:35,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:35,167 INFO L87 Difference]: Start difference. First operand 3062 states and 9724 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:35,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:35,209 INFO L93 Difference]: Finished difference Result 2156 states and 6624 transitions. [2022-01-18 08:55:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:35,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-01-18 08:55:35,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:35,212 INFO L225 Difference]: With dead ends: 2156 [2022-01-18 08:55:35,213 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:55:35,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:35,217 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 15 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:35,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 74 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:35,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:55:35,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:55:35,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:35,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:55:35,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-01-18 08:55:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:35,224 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:55:35,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:55:35,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:55:35,224 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 08:55:35,224 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-18 08:55:35,227 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-18 08:55:35,227 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-18 08:55:35,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 08:55:35,228 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 08:55:35,228 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-18 08:55:35,230 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:55:35,231 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:35,232 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:55:35,233 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 53 transitions, 127 flow [2022-01-18 08:55:35,361 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4620 states, 4612 states have (on average 3.402645273200347) internal successors, (15693), 4619 states have internal predecessors, (15693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:35,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 4620 states, 4612 states have (on average 3.402645273200347) internal successors, (15693), 4619 states have internal predecessors, (15693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:35,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:55:35,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:35,378 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:35,378 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:55:35,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:35,379 INFO L85 PathProgramCache]: Analyzing trace with hash 620408523, now seen corresponding path program 1 times [2022-01-18 08:55:35,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:35,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094798569] [2022-01-18 08:55:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:35,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:35,410 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:55:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:35,441 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:55:35,442 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:55:35,442 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:55:35,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 08:55:35,443 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:55:35,443 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:55:35,443 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:55:35,443 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-18 08:55:35,457 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,458 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,458 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,458 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,458 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,458 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,458 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,458 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,460 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,461 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,461 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,461 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,462 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,462 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,462 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,463 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,464 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,464 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,464 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,465 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,465 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,465 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,465 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,465 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,466 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,466 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,466 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,467 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,469 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,473 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,474 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,474 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,474 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,474 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,475 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,476 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,476 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,476 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,476 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,476 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,477 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,477 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,477 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,477 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,477 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,477 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,478 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,478 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,478 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,478 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,479 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,480 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,480 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,480 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:35,481 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:55:35,483 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:55:35,483 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:35,484 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 08:55:35,486 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 61 transitions, 154 flow [2022-01-18 08:55:37,049 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59651 states, 59609 states have (on average 4.3466255095707025) internal successors, (259098), 59650 states have internal predecessors, (259098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:37,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 59651 states, 59609 states have (on average 4.3466255095707025) internal successors, (259098), 59650 states have internal predecessors, (259098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-18 08:55:37,152 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:37,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:37,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:55:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1251690471, now seen corresponding path program 1 times [2022-01-18 08:55:37,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:37,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128308325] [2022-01-18 08:55:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:37,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:37,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:37,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:37,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128308325] [2022-01-18 08:55:37,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128308325] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:37,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:37,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:37,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969830] [2022-01-18 08:55:37,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:37,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:37,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:37,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:37,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:37,488 INFO L87 Difference]: Start difference. First operand has 59651 states, 59609 states have (on average 4.3466255095707025) internal successors, (259098), 59650 states have internal predecessors, (259098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:38,202 INFO L93 Difference]: Finished difference Result 32802 states and 138282 transitions. [2022-01-18 08:55:38,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:38,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-18 08:55:38,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:38,601 INFO L225 Difference]: With dead ends: 32802 [2022-01-18 08:55:38,601 INFO L226 Difference]: Without dead ends: 28427 [2022-01-18 08:55:38,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:38,602 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:38,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 74 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:55:38,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28427 states. [2022-01-18 08:55:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28427 to 28427. [2022-01-18 08:55:39,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28427 states, 28413 states have (on average 4.118959631154753) internal successors, (117032), 28426 states have internal predecessors, (117032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:40,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28427 states to 28427 states and 117032 transitions. [2022-01-18 08:55:40,059 INFO L78 Accepts]: Start accepts. Automaton has 28427 states and 117032 transitions. Word has length 22 [2022-01-18 08:55:40,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:40,059 INFO L470 AbstractCegarLoop]: Abstraction has 28427 states and 117032 transitions. [2022-01-18 08:55:40,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:40,060 INFO L276 IsEmpty]: Start isEmpty. Operand 28427 states and 117032 transitions. [2022-01-18 08:55:40,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-18 08:55:40,060 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:40,060 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:40,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 08:55:40,061 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:55:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:40,061 INFO L85 PathProgramCache]: Analyzing trace with hash 909409359, now seen corresponding path program 1 times [2022-01-18 08:55:40,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:40,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80074103] [2022-01-18 08:55:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:40,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:40,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 08:55:40,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:40,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80074103] [2022-01-18 08:55:40,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80074103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:40,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:40,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:40,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614859327] [2022-01-18 08:55:40,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:40,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:40,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:40,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:40,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:40,097 INFO L87 Difference]: Start difference. First operand 28427 states and 117032 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:40,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:40,244 INFO L93 Difference]: Finished difference Result 17021 states and 67905 transitions. [2022-01-18 08:55:40,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:40,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-01-18 08:55:40,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:40,245 INFO L225 Difference]: With dead ends: 17021 [2022-01-18 08:55:40,245 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:55:40,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:40,246 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 26 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:40,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 82 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:40,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:55:40,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:55:40,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:55:40,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-01-18 08:55:40,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:40,248 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:55:40,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:40,248 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:55:40,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:55:40,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 08:55:40,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-18 08:55:40,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-18 08:55:40,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-18 08:55:40,249 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-18 08:55:40,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 08:55:40,249 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 08:55:40,249 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-18 08:55:40,250 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:55:40,251 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:40,251 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:55:40,251 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 61 transitions, 154 flow [2022-01-18 08:55:41,169 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 36876 states, 36860 states have (on average 4.278594682582746) internal successors, (157709), 36875 states have internal predecessors, (157709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:41,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 36876 states, 36860 states have (on average 4.278594682582746) internal successors, (157709), 36875 states have internal predecessors, (157709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:41,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:55:41,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:41,253 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:41,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:55:41,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:41,254 INFO L85 PathProgramCache]: Analyzing trace with hash 744623267, now seen corresponding path program 1 times [2022-01-18 08:55:41,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:41,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839326535] [2022-01-18 08:55:41,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:41,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:41,282 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:55:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:41,305 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:55:41,306 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:55:41,306 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:55:41,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 08:55:41,306 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:55:41,307 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:55:41,307 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:55:41,307 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-01-18 08:55:41,323 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,323 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,323 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,323 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,323 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,323 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,323 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,323 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,324 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,324 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,324 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,324 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,325 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,325 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,325 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,325 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,325 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,326 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,326 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,326 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,326 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,326 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,327 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,327 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,327 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,327 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,327 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,327 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,327 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,327 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,328 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,328 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,329 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,330 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,330 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,331 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,331 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,331 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,331 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,332 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,332 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,332 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,332 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,332 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,332 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,333 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,333 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,333 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,334 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,334 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,335 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,335 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,336 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,336 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,336 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,336 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,336 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,336 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,337 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,337 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,337 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,337 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,338 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,338 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,338 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,338 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:41,339 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:55:41,340 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:55:41,341 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:41,342 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-18 08:55:41,345 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 69 transitions, 183 flow [2022-01-18 08:55:56,343 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 493057 states, 492968 states have (on average 5.232193570373736) internal successors, (2579304), 493056 states have internal predecessors, (2579304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 493057 states, 492968 states have (on average 5.232193570373736) internal successors, (2579304), 493056 states have internal predecessors, (2579304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:55:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-18 08:55:58,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:58,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:58,190 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:55:58,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:58,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1967171630, now seen corresponding path program 1 times [2022-01-18 08:55:58,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:58,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505423619] [2022-01-18 08:55:58,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:58,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:58,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:58,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505423619] [2022-01-18 08:55:58,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505423619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:58,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:58,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:58,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527173062] [2022-01-18 08:55:58,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:58,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:58,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:58,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:58,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:59,124 INFO L87 Difference]: Start difference. First operand has 493057 states, 492968 states have (on average 5.232193570373736) internal successors, (2579304), 493056 states have internal predecessors, (2579304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:56:03,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:03,437 INFO L93 Difference]: Finished difference Result 271911 states and 1387306 transitions. [2022-01-18 08:56:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:56:03,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-01-18 08:56:03,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:06,882 INFO L225 Difference]: With dead ends: 271911 [2022-01-18 08:56:06,883 INFO L226 Difference]: Without dead ends: 250036 [2022-01-18 08:56:06,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:56:06,883 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 21 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:06,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 83 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:56:08,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250036 states. [2022-01-18 08:56:16,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250036 to 250036. [2022-01-18 08:56:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250036 states, 250006 states have (on average 5.036603121525084) internal successors, (1259181), 250035 states have internal predecessors, (1259181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:56:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250036 states to 250036 states and 1259181 transitions. [2022-01-18 08:56:20,658 INFO L78 Accepts]: Start accepts. Automaton has 250036 states and 1259181 transitions. Word has length 22 [2022-01-18 08:56:20,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:20,658 INFO L470 AbstractCegarLoop]: Abstraction has 250036 states and 1259181 transitions. [2022-01-18 08:56:20,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:56:20,659 INFO L276 IsEmpty]: Start isEmpty. Operand 250036 states and 1259181 transitions. [2022-01-18 08:56:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-18 08:56:20,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:20,659 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:20,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 08:56:20,660 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:56:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash 333432084, now seen corresponding path program 1 times [2022-01-18 08:56:20,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:20,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117109069] [2022-01-18 08:56:20,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:20,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 08:56:20,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:20,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117109069] [2022-01-18 08:56:20,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117109069] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:56:20,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:56:20,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:56:20,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57155127] [2022-01-18 08:56:20,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:56:20,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:56:20,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:20,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:56:20,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:56:20,703 INFO L87 Difference]: Start difference. First operand 250036 states and 1259181 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:56:22,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:22,515 INFO L93 Difference]: Finished difference Result 129076 states and 631062 transitions. [2022-01-18 08:56:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:56:22,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-01-18 08:56:22,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:22,516 INFO L225 Difference]: With dead ends: 129076 [2022-01-18 08:56:22,516 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:56:22,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:56:22,517 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 30 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:22,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 90 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:56:22,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:56:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:56:22,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:56:22,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:56:22,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-01-18 08:56:22,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:22,518 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:56:22,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:56:22,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:56:22,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:56:22,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-18 08:56:22,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-18 08:56:22,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-18 08:56:22,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-18 08:56:22,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-18 08:56:22,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-18 08:56:22,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 08:56:22,519 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 08:56:22,519 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-18 08:56:22,520 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:56:22,521 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:56:22,521 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:56:22,522 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 69 transitions, 183 flow [2022-01-18 08:56:31,100 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 294924 states, 294892 states have (on average 5.153171330521005) internal successors, (1519629), 294923 states have internal predecessors, (1519629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:56:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 294924 states, 294892 states have (on average 5.153171330521005) internal successors, (1519629), 294923 states have internal predecessors, (1519629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 08:56:32,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:56:32,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:32,356 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:32,356 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:56:32,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:32,357 INFO L85 PathProgramCache]: Analyzing trace with hash -576744180, now seen corresponding path program 1 times [2022-01-18 08:56:32,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:32,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135707218] [2022-01-18 08:56:32,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:32,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:56:32,379 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:56:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:56:32,392 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:56:32,393 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:56:32,393 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:56:32,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 08:56:32,393 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:56:32,393 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:56:32,393 WARN L234 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:56:32,394 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2022-01-18 08:56:32,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,404 WARN L322 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,404 WARN L322 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,404 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,405 WARN L322 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,405 WARN L322 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,405 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,406 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,407 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,411 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,411 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,411 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,412 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,412 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,412 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,413 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,414 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,419 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,422 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,423 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,424 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,424 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,425 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,425 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,425 WARN L322 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,426 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,426 WARN L322 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,427 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,427 WARN L322 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,427 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,427 WARN L322 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,428 WARN L322 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,428 WARN L322 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:32,428 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:56:32,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:56:32,431 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:56:32,431 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-01-18 08:56:32,432 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 77 transitions, 214 flow